Programming language and runtime environment that allows compiled Java programs to run unchanged on most hardware and software platforms

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opentsdb process stuck due to “Unexpected exception from downstream”

I am trying to put data into openTSDB. I prepared 100 files of raw data. Each file contains 5 million rows of data. I`m using the RESTful API, put to operate one files at one time. The problem is , ...
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0answers
18 views

How do I make a server accessible over the internet [migrated]

I wrote a chat client and server in Java. It works but as I'm finding out, only locally. The goal is to get it to function over the web. I've tried quite a lot of things, and can elaborate if need ...
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0answers
13 views

Website always takes very long time to load page only in running environment but not local

I'm sorry to upload same article on stackoverflow. I'm web developer in Korea. Because of delays of our web application installed on running server(real, not testing) I'm writing this question. ...
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3answers
2k views

Debian install netbeans - “No protocol specified”

When trying to run the netbeans shell installer, it gives me an error. ./netbeans-7.0.1-m1-php-linux.sh Configuring the installer... Searching for JVM on the system... Extracting installation data... ...
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3answers
2k views

Extremely slow startup of tomcat

I have a tomcat 7 installation on a Solaris 10 server. My problem is that starting the server (or deploying a new war) is extremely slow. It usually take 30 - 60 minutes. The war application is a ...
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2answers
1k views

Deploying play! 2.0 application on an apache server with a reverse proxy

I'm trying to deploy my play! 2.0 application on an Ubuntu 11.10 server and I have been running into error after error and hope someone can help me here. I am try to deploy my Play! application using ...
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1answer
28 views

Switching to Java 1.8 on openSUSE 13.2

I removed the installed version of Java 1.7 using: sudo zypper remove -y java-1_7_0-openjdk java-1_7_0-openjdk-devel java-1_7_0-openjdk-plugin Then installed Java 1.8: sudo zypper install -y ...
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1answer
19 views

.War updates for Jboss

There is a .war file running well in JBoss environment. I need to update some little logic in some of the .jsp files. The steps I followed was First I change the extension to .zip extract out a ...
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1answer
45 views

Centos 6.6 : Which java is selected when I run a JAR/WAR file without using java -jar command? [closed]

On a Centos 6.6 server, how can I choose which java should be selected when I run an executable JAR or WAR file without using the "java -jar" command. I mean, I'd like to execute it with a ...
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0answers
12 views

Java Webapp on Tomcat6 using libservlet3

I am quite new to all this Java stuff. I Installed a bunch of War-Packed Webapps on a Ubuntu Machine with tomcat6. One of them does not work (skos-play), apparently because it needs libservlet3 and ...
2
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1answer
30 views

How leave Jenkins running remotely on the server? [duplicate]

I am running as follows Jenkins on my server: $> labes@labes-jenkins:~/jenkins$ java -jar jenkins-1.622.war But when I unplug my machine the application of jenkins goes down, as I do to get the ...
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0answers
12 views

Tomcat: create an install package that includes server and java web application for Windows [on hold]

I am trying to find a way to make a install file that will contain tomocat and files that will be hosted. Is it possible?
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0answers
15 views

one or more threads of java.exe are waiting to finish network I/O windows 2012 server

I have installed jdk-8u45-windows-x64 on my windows 2012 server. I am seeing that in task manager java.exe is utilizing high CPU. I check he detail in task manager via right clicking on java.exe then ...
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0answers
13 views

Fatal Error While running Tomcat application in Ubuntu (Oracle Virtual Box)

In windows 7 laptop, I have installed oracle virtual box there i have installed ubuntu 12.04 server The following is the error while starting the tomcat application # # A fatal error has been ...
0
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1answer
952 views

java 7: should users be aware of changes in heap memory handling?

After installing the latest Java 7 Development Kit (Java SE 7u11) on my Windows 7 Professional 32bit PC with 4Gb RAM, I noticed I can't allocate much memory for Tomcat. Whereas these memory settings ...
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0answers
40 views

Applet not allowed to run

I am running a simple applet application into my mozilla firefox browser but java blocks it. I have done all changes as suggested on different different articles like adding url to ESL, security ...
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2answers
2k views

Java application server behind IIS 7.5 on Windows Server 2008

I have a Java application server (GlassFish, indeed, but the problem is the same for any other application server, I guess), running on port 8080. And I have IIS 7.5 listening on port 80 as by default ...
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2answers
5k views

IIS 7 + Tomcat 7 - how to reach http://localhost:8080/my_app under e.g. http://my_app.local

In brief: IIS 7 + Apache Tomcat 7 + isapi_redirect.dll: I have a deployed and working Tomcat-application available under http://localhost:8080/my_app. I would like to see the same content under ...
2
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1answer
1k views

Java Deployment and Configuration (1.6.0_21)

Sofware: Java Runtime Environment 1.6.0_21 OS: Windows XP Professional 32-Bit, SP3 Situation: a new piece of web based software is being deployed this week and prior to this all the company desktops ...
0
votes
1answer
30 views

Apache 2.2 to Tomcat Virtual Host from differnt machines not working

I have a scenario where all the requests to the Tomcat Server (Application Server) should go through the Apache 2.2 (Web server). Both the servers are on 2 different machines. The 2 machines are not ...
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votes
1answer
110 views

How does a load-balancer manages end user http sessions? [duplicate]

I don not have experience with Load balancer. But I know what is load balancer i.e. balancing the load of user requests to multiple servers. OR Distributes workloads across multiple computing ...
2
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1answer
3k views

How to solve SocketException: Permission denied: connect

I recently encountered a problem that is giving me a headache and I need help ... The System consists of two subsystems, called A and B, each running on a standalone Tomcat instance and currently ...
5
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1answer
22k views

Cannot find open shared object file libjli.so — no such file or directory

On 64-bit RHEL5 running Java 1.6.0 update 16, root can successfully run a Java program but a user can't because libjli.so supposedly can't be found. SELinux is turned off and the environment is the ...
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0answers
21 views

How to make Java auto-update for small organization with non admin users?

I'm stuck with an issue regarding Java which is a real pain in my ass. I'm managing small office networks where I get great results using AD and GPO to set everything up and automated. In each of ...
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2answers
105 views

Keep jar running on server after ssh disconnect [closed]

How can I keep a jar, that I started via ssh, running on a server after disconnect my ssh?
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0answers
40 views

Tomcat: multiple domains from a single instance

I'm trying to host multiple domains on a single tomcat instance. I have it working but I'm not sure if it is the correct way to do things. The server.xml Hosts section is changed to this: ...
2
votes
1answer
1k views

How do I set the jmx to listen in a specific IP

I am trying to configure jboss to allow monitoring with a jmx tool (I am looking at a few so no need to give). Looking at the properties in java jmx docs it does not seem to have a property to set ...
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votes
7answers
86k views

How to determine JAVA_HOME on Debian/Ubuntu?

On Ubuntu it is possible to have multiple JVMs at the same time. The default one is selected with update-alternatives. But this does not set the JAVA_HOME environment variable, due to a debian policy. ...
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1answer
19 views

Updating Java with Solaris zones

I am running a server with a global zone and four local zones. The global zone provides the database server, and the four local zones run instances of Tomcat with a client application (different one ...
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0answers
6 views

ActiveMQ SSL Transport w/ Multiple Certs in Keystore?

We're running ActiveMQ Transport w/ SSL enabled (port 443/HTTPS). We have four domain certs: *.domain.com *.domain-dev.com *.domain-qa.com *.domain-stg.com I've gone through the process of ...
1
vote
1answer
1k views

Can't start WebLogic admin console

I'm wondering how to fix this error. We had the wrong Java installed on my machine when I got it, so my boss installed JRocket to fix things. WebLogic has been having problems ever since. I cannot ...
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1answer
1k views

What is stopping my Visual JVM remote connection?

I have started my application with this settings below: -Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.port=43588 -Dcom.sun.management.jmxremote.authenticate=false ...
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1answer
932 views

Tomcat web application intermittent freeze

I have a Grails web application (just a standard war file) deployed on a Ubuntu 10.10 server running on tomcat 6. My database is postgresql. The problem is that every so often (once or twice a day ...
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0answers
11 views

Session State issue in glassfish 3.1 Web Server with load balancer

I have 5 ubuntu servers with glassfish 3.1. A spring MVC web app is deployed on all 5 servers no clusters are used. We have configured all web servers behind load balancer, (while testing) we observed ...
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1answer
1k views

iDRAC6 JViewer Unusable

I'm getting the following error when trying to launch the Virtual Console, but the Virtual Console Preview works fine (it displays a small preview about once a second). I've confirmed that my M610 ...
0
votes
1answer
5k views

Error deploying Spring with JAX-WS application in Jboss 6 server

I'm getting this error when I deploying spring+JAX-WS application in jboss server 6.1.0. 09:14:38,175 ERROR [org.springframework.web.context.ContextLoader] Context initialization failed: ...
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vote
1answer
1k views

Connecting jconsole using SOCKS to Amazon EC2

I'm trying to use jconsole to view stats on an EC2 instance by using a socks proxy created by SSH. I've tried the various scripts mentioned in the links below but to no avail: ...
5
votes
2answers
953 views

Linux (non-transparent) per-process hugepage accounting

I've recently converted some java apps to run with linux manually-configured hugepages, as described here. I point out "manually-configured" because they are not transparent hugepages, which gave us ...
0
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1answer
939 views

Unable to connect to remoteJMX but able to Telnet on same port after setting Dcom.sun.management.jmxremote environment variables?

I am rather perplexed at this point as we have a need to connect through remotejxm to monitor the JDK on a server through a monitoring application but I am repeatedly being told when trying to connect ...
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0answers
3 views

Identifying cached JNLP applications via batch script

I am attempting to script a solution to install JRE 7 only to systems that run a particular JavaWS application. Essentially the current application requires Java 6 and the upgrade will break ...
0
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0answers
9 views

What is the difference between Oracle WebCenter Content and Oracle Portal?

I'm having a difficult time understanding the difference between these two technologies. What I have understood is: The business logic, and DB connections lies in the Oracle Portal (weblogic server) ...
3
votes
1answer
2k views

Connect to SVN repository with Netbeans using SVN+SSH

I am trying to connect to a SVN server in order to import my project into it with svn+ssh authentication method. I am using the NetBeans IDE (6.8) with subversion plugin installed on Windows XP SP2. I ...
0
votes
1answer
33 views

Configure HA Proxy with two application servers to handle fail-over

I have configured two application servers with HA Proxy to recover from fail-over situation. So I want to configure HA in such a way that if my 1st application server goes down, then only next ...
2
votes
2answers
323 views

Connecting MySQL database remotely on a hosting provider secure?

My JavaFX Desktop Application is currently connected to a hosted MySQL database remotely on bluehost. I query "SELECT", "UPDATE", "DELETE" on my JavaFX Application and successfully done. My ...
0
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1answer
16 views

java - how to limit sending email by 3rd party tools?

I have a (Win2008 R2) box running the Jenkins continuous integration server. It's a java program running as a Windows service. The command line looks like this: > "C:\Program Files ...
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1answer
36 views

monit: how do I restart many Tomcats without overloading the server?

My server has several separate Apache Tomcat instances that each take a lot of time and CPU to start. It is not possible to start all of them at the same time. This would generate too much I/O, each ...
0
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1answer
38 views

NFS Server | Hung threads

We have four lpars each running 1 java instance each. They do a lot of read/write operations to a shared NFS server. When the NFS server goes down abruptly, all the threads that were trying to read a ...
3
votes
1answer
4k views

Signing a Java Deployment Rule Set JAR using AD Certificate Services

I am tasked with deploying Java 7 Update 55 along with a Java Deployment Rule Set to all Active Directory Windows clients. I've managed to get a solid Java software deployment setup but I'm now ...
7
votes
1answer
7k views

Copy a Java keystore on one machine to another?

I have a keystore on one machine (at /root/.keystore) and I want to move it to another machine at the same location. Currently, the second machine doesn't have a keystore at /root/.keystore, is there ...
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vote
1answer
2k views

Tomcat 7 ClassNotFoundException: org.apache.tomcat.JarScanner

When I try and start my app I get this error. I have verified that JarScanner exists in the CATALINA_HOME directory so I dont know why it cant find it. Is there anything that could lead to this issue ...